/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* 标题样式 */
h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 2rem;
}

h2 {
    color: #333;
    margin: 0 0 10px;
    font-size: 16px;
    font-weight: normal;
}

h3 {
    color: #666;
    margin: 10px 0;
    font-size: 14px;
    font-weight: normal;
}

/* 模型选择器样式 */
.model-selector {
    background: #fff;
    padding: 20px;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.model-select-group {
    display: flex;
    gap: 15px;
    margin-bottom: 10px;
}

.model-select-group select {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    color: #333;
    background-color: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
}

.model-select-group select:disabled {
    background-color: #f5f5f5;
    cursor: not-allowed;
    opacity: 0.7;
}

.model-select-group select:focus {
    outline: none;
    border-color: #4CAF50;
    box-shadow: 0 0 5px rgba(76, 175, 80, 0.3);
}

.selected-model {
    margin-top: 10px;
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: 4px;
    font-size: 14px;
    color: #666;
}

/* 快速翻译区域样式 */
.quick-translate-section {
    margin-bottom: 20px;
}

.quick-translate-box {
    background: #fff;
    padding: 15px;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.input-group {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.input-group input[type="text"] {
    flex: 2;
    height: 40px;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
}

.input-group input[type="text"]:focus {
    outline: none;
    border-color: #4CAF50;
    box-shadow: 0 0 5px rgba(76, 175, 80, 0.3);
}

.btn-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.btn {
    padding: 8px 15px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    white-space: nowrap;
    transition: all 0.2s ease;
    min-width: 100px;
}

.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-loading {
    position: relative;
    color: transparent !important;
}

.btn-loading::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 16px;
    height: 16px;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid #fff;
    border-radius: 50%;
    border-right-color: transparent;
    animation: btn-spin 0.75s linear infinite;
}

@keyframes btn-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.btn:hover {
    background: #f5f5f5;
    border-color: #ccc;
}

.btn-primary {
    background: #4CAF50;
    color: #fff;
    border-color: #4CAF50;
}

.btn-primary:hover:not(:disabled) {
    background: #45a049;
    border-color: #45a049;
}

.quick-translate-result {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #f8f9fa;
    font-size: 14px;
    min-height: 60px;
    line-height: 1.5;
}

/* 主要内容区域样式 */
.top-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.input-box, .translate-box {
    background: #fff;
    padding: 20px;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

textarea {
    width: 100%;
    min-height: 200px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    resize: vertical;
    margin-bottom: 10px;
    font-size: 14px;
    line-height: 1.5;
}

.correction-btn {
    padding: 8px 15px;
    background: #4CAF50;
    color: #fff;
    border: 1px solid #4CAF50;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s ease;
}

.correction-btn:hover {
    background: #45a049;
    border-color: #45a049;
}

/* 翻译区域样式 */
.translate-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding: 0 10px;
}

.translate-header h2 {
    margin: 0;
}

.translate-header .btn {
    margin-left: 15px;
    height: 36px;
    min-width: 80px;
}

.translate-results {
    display: grid;
    gap: 15px;
}

.result-group {
    background-color: #f8f9fa;
    padding: 10px;
    border-radius: 4px;
}

.result-content {
    min-height: 100px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    line-height: 1.5;
    background-color: #fff;
}

.result-content textarea {
    width: 100%;
    min-height: 100px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    line-height: 1.5;
    resize: vertical;
}

.result-content textarea:focus {
    outline: none;
    border-color: #4CAF50;
    box-shadow: 0 0 5px rgba(76, 175, 80, 0.3);
}

/* 底部区域样式 */
.bottom-section {
    margin-top: 20px;
}

.correction-box {
    background: #fff;
    padding: 20px;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* 英语纠错结果样式 */
.correction-item {
    margin-bottom: 15px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 4px;
    border-left: 3px solid #4CAF50;
}

.correction-type {
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 5px;
}

.correction-original {
    color: #e74c3c;
    margin-bottom: 5px;
}

.correction-explanation {
    color: #666;
    margin-bottom: 5px;
}

.correction-suggestion {
    color: #27ae60;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .model-select-group {
        flex-direction: column;
    }

    .input-group {
        flex-direction: column;
    }

    .input-group textarea,
    .quick-translate-result {
        width: 100%;
    }

    .btn-group {
        flex-direction: row;
        justify-content: stretch;
    }

    .btn-group .btn {
        flex: 1;
    }

    .top-section {
        grid-template-columns: 1fr;
    }
}

/* 错误消息样式 */
.error-message {
    color: #e74c3c;
    font-weight: 500;
    display: inline-block;
    padding: 4px 8px;
    background-color: #fdf3f2;
    border-radius: 4px;
    border: 1px solid #f9d6d3;
}